BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 64 36.6%
2 United States 55 31.4%
3 Germany 11 6.3%
4 Netherlands 11 6.3%
5 Hong Kong 10 5.7%
6 Portugal 5 2.9%
7 Canada 5 2.9%
8 3 1.7%
9 Senegal 3 1.7%
10 Singapore 2 1.1%
11 Ukraine 1 0.6%
12 United Arab Emirates 1 0.6%
13 United Kingdom 1 0.6%
14 Czech Republic 1 0.6%
15 Russia 1 0.6%
16 Macao 1 0.6%